<html>
<head>
    <meta charset="UTF-8">
    <link href="static/assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
    <link href="static/assets/global/css/components.css" rel="stylesheet" type="text/css"/>
    <link href="static/assets/admin/pages/css/login.css" rel="stylesheet" type="text/css"/>
    <script src="static/assets/global/plugins/jquery-1.11.0.min.js" type="text/javascript"></script>
</head>

<body class="login">
<div class="content">
    <h3 class="form-title">商品详情</h3>
    <div id="promoStartDateContainer">
        <label style="color: red" id="promoStatus" class="control-label"></label>
        <div>
            <label style="color: red" class="control-label" id="promoStartDate"/>
        </div>
    </div>
    <div>
        <div>
            <label class="control-label" id="title"/>
        </div>
    </div>
    <div>
        <label class="control-label">商品描述</label>
        <div>
            <label class="control-label" id="description"/>
        </div>
    </div>
    <div>
        <label id="normalPriceContainer" class="control-label">价格</label>
        <div>
            <label class="control-label" id="price"/>
        </div>
    </div>
    <div id="promoPriceContainer">
        <label style="color: red" class="control-label">秒杀价格</label>
        <div>
            <label style="color: red" class="control-label" id="promoPrice"/>
        </div>
    </div>
    <div>
        <div>
            <img style="width: 200px;height: auto;" id="imgUrl">
        </div>
    </div>
    <div>
        <label class="control-label">库存</label>
        <div>
            <label class="control-label" id="stock"/>
        </div>
    </div>
    <div>
        <label class="control-label">销量</label>
        <div>
            <label class="control-label" id="sales"/>
        </div>
    </div>
    <div class="form-actions">
        <button class="btn blue" id="createorder" type="submit">
            下单
        </button>
    </div>
</div>

</body>

<script>

    var g_itemVO = {};

    function getParam(paramName) {
        paramValue = "", isFound = !1;
        if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=") > 1) {
            arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&"), i = 0;
            while (i < arrSource.length && !isFound) arrSource[i].indexOf("=") > 0 && arrSource[i].split("=")[0].toLowerCase() == paramName.toLowerCase() && (paramValue = arrSource[i].split("=")[1], isFound = !0), i++
        }
        return paramValue == "" && (paramValue = null), paramValue
    }

    jQuery(document).ready(function () {
        $("#createorder").on("click",function () {
            $.ajax({
                type: "POST",
                url: "http://localhost:8090/order/createorder",
                contentType:"application/x-www-form-urlencoded",
                data: {
                    "itemId": g_itemVO.id,
                    "amount":1,
                    "promoId":g_itemVO.promoId
                },
                xhrFields: {withCredentials: true},
                success: function (data) {
                    if (data.status == "success") {
                        alert("下单成功");
                        window.location.href="";
                    } else {
                        alert("下单失败，原因为：" + data.data.errMsg);
                        if (data.data.errCode == 20003){
                            window.location.href="login.html";
                        }
                    }
                },
                error: function (data) {
                    alert("下单失败，原因是：" + data.responseText);
                }
            })
        });
        $.ajax({
            type: "GET",
            url: "http://localhost:8090/item/get",
            data: {
                id: getParam("id")
            },
            xhrFields: {withCredentials: true},
            success: function (data) {
                if (data.status == "success") {
                    g_itemVO = data.data;
                    reloadDom();
                    setInterval(reloadDom,1000)
                } else {
                    alert("获取商品信息失败，原因为：" + data.data.errMsg);
                }
            },
            error: function (data) {
                alert("获取商品信息失败，原因是：" + data.responseText);
            }
        });
    });
    function reloadDom() {
        $("#title").text(g_itemVO.title);
        $("#description").text(g_itemVO.description);
        $("#price").text(g_itemVO.price);
        $("#imgUrl").attr("src",g_itemVO.imgUrl);
        $("#stock").text(g_itemVO.stock);
        $("#sales").text(g_itemVO.sales);
        if (g_itemVO.promoStatus == 1){
            // 秒杀活动还未开始
            var startTime = g_itemVO.startDate.replace(new RegExp("-","gm"),"/");
            startTime = (new Date(g_itemVO.startDate)).getTime();
            var nowTime = Date.parse(new Date());
            var delta = (startTime - nowTime)/1000;

            if (delta <= 0){
                // 活动开始了
                g_itemVO.promoStatus = 2;
                reloadDom();
            }
            $("#promoStartDate").text("秒杀活动将于: " + g_itemVO.startDate + " 开始售卖 倒计时: "+delta+" 秒");
            $("#promoPrice").text(g_itemVO.promoPrice);

            $("#createorder").attr("disabled",true);
        }else if (g_itemVO.promoStatus == 2){
            // 秒杀活动正在进行中
            $("#promoStartDate").text("秒杀活动正在进行中");
            $("#promoPrice").text(g_itemVO.promoPrice);

            $("#createorder").attr("disabled",false);
            $("#normalPriceContainer").hide();
        }
    }
</script>
</html>